Home / 99,391,018.42-148,892,575.92-77,428,562.27

Finding the Fourth Proportional to 99,391,018.42, 148,892,575.92 and 77,428,562.27

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Solution

The fourth proportional to 99,391,018.42, 148,892,575.92 and 77,428,562.27 is: 115,991,749.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,391,018.42 : 148,892,575.92 = 77,428,562.27 : x
  2. Step 2: Convert to fraction form
    99,391,018.42/148,892,575.92 = 77,428,562.27/x
  3. Step 3: Cross multiply
    99,391,018.42x = 148,892,575.92 × 77,428,562.27
  4. Step 4: Simplify right side
    99,391,018.42x = 11,528,538,085,546,436
  5. Step 5: Solve for x
    x = 11,528,538,085,546,436/99,391,018.42
  6. Step 6: Final answer
    x = 115,991,749.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.